JPS5573810A - Solidification preventing agent of molten iron - Google Patents

Solidification preventing agent of molten iron

Info

Publication number
JPS5573810A
JPS5573810A JP14719378A JP14719378A JPS5573810A JP S5573810 A JPS5573810 A JP S5573810A JP 14719378 A JP14719378 A JP 14719378A JP 14719378 A JP14719378 A JP 14719378A JP S5573810 A JPS5573810 A JP S5573810A
Authority
JP
Japan
Prior art keywords
molten iron
preventing agent
slag
blast furnace
desulfurization treatment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14719378A
Other languages
Japanese (ja)
Inventor
Shichiro Ito
Komoto Namikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TOSHIN SANGYO KK
TOUSHIN SANGYO KK
Original Assignee
TOSHIN SANGYO KK
TOUSHIN SANGYO KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TOSHIN SANGYO KK, TOUSHIN SANGYO KK filed Critical TOSHIN SANGYO KK
Priority to JP14719378A priority Critical patent/JPS5573810A/en
Publication of JPS5573810A publication Critical patent/JPS5573810A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

PURPOSE:To prevent the decrease in fluidity of desulfurized slag by adding the specific crushed natural stones into the blast furnace molten iron after the desulfurization treatment. CONSTITUTION:When crushed natural stones of 75-80% in SiO2 content and containing Na and Ca, e.g., five resistance stone, (lotnite), pumicestone, feldspar (aplite), etc. are added to the blast furnace molten iron after desulfurization treatment at the time of carrying the same to a steel making furnace with a mixing car, then the melting point of the slag lowers and therefore its solidification may be prevented, and the possibility for the desulfurized slag for remaining in the mixing car and causing resulfurizing phenomenon in the next molten iron is eliminated.
JP14719378A 1978-11-30 1978-11-30 Solidification preventing agent of molten iron Pending JPS5573810A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14719378A JPS5573810A (en) 1978-11-30 1978-11-30 Solidification preventing agent of molten iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14719378A JPS5573810A (en) 1978-11-30 1978-11-30 Solidification preventing agent of molten iron

Publications (1)

Publication Number Publication Date
JPS5573810A true JPS5573810A (en) 1980-06-03

Family

ID=15424659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14719378A Pending JPS5573810A (en) 1978-11-30 1978-11-30 Solidification preventing agent of molten iron

Country Status (1)

Country Link
JP (1) JPS5573810A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569308A (en) * 1979-06-30 1981-01-30 Riken Kogyo Kk Desulfurization and dephosphorization of molten pig iron
KR20020052131A (en) * 2000-12-23 2002-07-02 이구택 Insulator for molten iron using by-products in ironmaking processes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569308A (en) * 1979-06-30 1981-01-30 Riken Kogyo Kk Desulfurization and dephosphorization of molten pig iron
KR20020052131A (en) * 2000-12-23 2002-07-02 이구택 Insulator for molten iron using by-products in ironmaking processes

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